Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

BC560C with higher FT?

Status
Not open for further replies.

neazoi

Advanced Member level 6
Joined
Jan 5, 2008
Messages
4,122
Helped
13
Reputation
26
Reaction score
15
Trophy points
1,318
Location
Greece
Activity points
36,951
Hi in my application (HF small preamplifier) I use BC550C and it's complement BC560C (similar to BC549C and BC559C or BC547C and BC557C)
These two devices should have the the same HFE, but I notice from the datasheets that the PNP one, has lower Ft. Therefore it does not provide the same amplification, despite my circuit is built "mirrored" from the NPN one.
Is there a bjt that can match the BC550C but on higher Ft than the BC560C? (through hole only)
 

Hi,

"BC" transistors are not really HF transistors. If you are looking for higher frequency transitors look for "BF".

"B" stands for "silicon" (not germanium)
"C" for low frequency
"F" for high frequency

Unless you buy "matched pair" transistors the values may differ a lot.
Mind to define for which parameters they are "matched".

Best performance gives a "matched pair in one package".

Klaus
 
  • Like
Reactions: Easy peasy

    d123

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top